I hope someone can help me with a problem I am having. It is neither homework or coursework, but for my own understanding.
I should say from the start, I am one of those people who tend not to be able to see the forset because all the trees are in the way, so I probably will be...
Hi, thanks for the reply!
I think zeroing the bin that has the frequency of the DC component is the best way to work it, I will try that.
Can't believe I didn't think of that haha.
I have used the 'axis' command for a few scaling problems, but I think setting the elements to zero will do that...
I am hoping someone can give me some advice. I need to zero out the DC component of an FFT I have done, so I can get a better look at the rest of the frequency components, so how would one go about doing that?
I am not looking the code, just some advice ...I have just really started...
I am hoping someone can help me understand something. I was watching one of the MIT OCW videos and it ran through the following
Δf/Δx = (1/(x0+Δx - 1/x0)) / Δ0
can be rewritten as
Δf/Δx = 1/Δx (x0-(x0+Δx) / (x0+Δx)x0)
But I am not sure how this was done.
I hope someone...
I am having a bit of an issues rearranging an equation for my solid state electronics class. I seem to have a mental block with this sort of stuff, so I am hoping someone can help.
The equation is
0.34 = 1.05((0.64 + |VBS|)1/2 - (0.64)1/2)
I know the usual stuff, like + to a -...
I hope everyone is well.
I was just wondering about experience for a recent graduate ...I am doing an MSc in Electronics, and will be spending about 8-9 months in our device fabrication lab on a part-time and then full time basis (full time over the summer).
Could this be put...
Thanks for the reply.
You're right, rectifying characteristics means it allows current to flow in one direction, and blocks in the other. Which clears that up at least, and explains why you want ohmic contacts.
The research is progressing anyway haha ...I am writing an interim...
Hey, thanks for the reply.
I am trying to research reducing the barrier height in transistors. From what I have been reading it says that when the metal and semiconductor for a pn junction, the contact can have a Schottky barrier which exhibits rectifying characteristics.
I may have this...
A Schottky barrier is said to have rectifying characteristics, which from what I can understand is bad ...but would the rectifying characteristics mean that current passing through the junction would be flat ....level is probably a better way to describe it rather than flat.
I am having some trouble understanding an integration example we have. I have written it out in the attached pdf. I would be grateful if someone can help me undertand what is going on.
I assume you let a = (x-RP)/(√2 ΔRP) da to make the process easier, but I am, not sure how that...
Ah sorry. I meant voltage into the USB. I obviously didn't pay too much attention to what I was writing. Sorry.
So, I take it there is a regulator on the input to the USB, which will take it down to the required spec?
This is probably a silly question. But it is something I haven't been able to find an answer too.
When I connect something to my laptop through the USB, I know that there is 5V coming from the USB connection ...there are many pinout diagrams about that show this. But what is the...
Oh, sorry ....I just figured it out!
Taking a break and coming back to it does help.
....just a thought, should I explain how it is done in case anyone else is looking to know this sort of thing?
I don't know what the protocol would be on that.
I am hoping someone can help me understand a problem in a text book. It just assumes you know how to do a littel bit of maths, which I don't, and haven't been able to figure out.
S11 = 0.894 \angle -60.6
S21 = 3.122 \angle 123.6
S12 = 0.020 \angle 62.4
S22 = 0.781 \angle -27.6...
Well, I guess it depends excatly what you want to do ...technology is a bit of a wide term. However, have you looked at the Open University?
You can get funding for the courses ...You apply through the OU, not through the students loan company as you would with a traditional brick...
In my university, there is a copy of MATLAB on every computer in the engineering buildings (and I assume the maths department too) as well as the library ...but they do not distribute it to students.
There is some software freely available, bit MATLAB ain't one of them ....shame.
I need to design a matching circuit to provide maximum power transfer from a generator with impedance Zg to a load with impedance ZL. The matching circuit has a length of transmission line with impedance Z0 and short circuit or open circuit stub with impedance Zs. I need to design with...
I maybe should have put this in the maths section, but it is related to electronics, so I figured here.
I am reading Microwave Engineering by Pozar, and in one of the examples, it says that the series RC load impedance is ZL = 60 - j80, so the resistance is 60 Ohms and the...
In a class today, the lecturer said, in an introduction to the material that will be covered, something along the lines of "..and the current is kept relatively flat (low?) thanks to impedance ..."
Is this because impedance acts like resistance (but in AC circuits), or would there be...